So, remember when monsters were king? Yes I have cables from them when only 4k came out. Big thick cable. 24 gauge HDMI cable. Well I've been using them for years and the 4k HDR looked beautiful. Thinking I need a newer and faster cable for 4k hdr 120hz (2.1) I bought 5 of these cables in different lengths. 2 8 feet, 2 6 feet, 1 12 feet. Well my computer on an old HDMI monster (21GB) showed 1440p x 120Hz. This once connected. The computer didn't even give me the option to do anything other than 60Hz at 1440p. Since the TV doesn't have 2.1 it can't play 4k HDR at 120Hz, but it can play 1440p at 120Hz because it was literally doing it through an old cable. That's HALF the thickness of my above mentioned HDMI Platinum from Monster.